Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
416,935 users
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
397,105 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome. Note: Android users seeing "unavailable on your platform", go to https://addons.mozilla.org/en-US/android/addon/google-search-fixer/
684 users
Privacy Possum
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
86,474 users
DuckDuckGo Privacy Essentials
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more.
1,188,550 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,040,347 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
2,156,657 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
4,511,218 users
HTTPS Everywhere
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
692,063 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
416,935 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
909,541 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
178,085 users
RoboForm Password Manager
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically
78,750 users
MYKI Password Manager & Authenticator
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
3,421 users